1.0.0[−][src]Trait std::ops::Sub
The subtraction operator -
.
Note that Rhs
is Self
by default, but this is not mandatory. For
example, std::time::SystemTime
implements Sub<Duration>
, which permits
operations of the form SystemTime = SystemTime - Duration
.
Examples
Sub
tractable points
use std::ops::Sub; #[derive(Debug, PartialEq)] struct Point { x: i32, y: i32, } impl Sub for Point { type Output = Point; fn sub(self, other: Point) -> Point { Point { x: self.x - other.x, y: self.y - other.y, } } } assert_eq!(Point { x: 3, y: 3 } - Point { x: 2, y: 3 }, Point { x: 1, y: 0 });Run
Implementing Sub
with generics
Here is an example of the same Point
struct implementing the Sub
trait
using generics.
use std::ops::Sub; #[derive(Debug, PartialEq)] struct Point<T> { x: T, y: T, } // Notice that the implementation uses the associated type `Output`. impl<T: Sub<Output = T>> Sub for Point<T> { type Output = Self; fn sub(self, other: Self) -> Self::Output { Point { x: self.x - other.x, y: self.y - other.y, } } } assert_eq!(Point { x: 2, y: 3 } - Point { x: 1, y: 0 }, Point { x: 1, y: 3 });Run
Associated Types
type Output
The resulting type after applying the -
operator.
Required methods
Loading content...Implementations on Foreign Types
impl<'_, '_, T, S> Sub<&'_ HashSet<T, S>> for &'_ HashSet<T, S> where
S: BuildHasher + Default,
T: Eq + Hash + Clone,
S: BuildHasher + Default,
T: Eq + Hash + Clone,
type Output = HashSet<T, S>
fn sub(self, rhs: &HashSet<T, S>) -> HashSet<T, S>
Returns the difference of self
and rhs
as a new HashSet<T, S>
.
Examples
use hashbrown::HashSet; let a: HashSet<_> = vec![1, 2, 3].into_iter().collect(); let b: HashSet<_> = vec![3, 4, 5].into_iter().collect(); let set = &a - &b; let mut i = 0; let expected = [1, 2]; for x in &set { assert!(expected.contains(x)); i += 1; } assert_eq!(i, expected.len());Run
Implementors
impl Sub<f32> for f32
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impl Sub<f64> for f64
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impl Sub<i128> for i128
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impl Sub<i16> for i16
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impl Sub<i32> for i32
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impl Sub<i64> for i64
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impl Sub<i8> for i8
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impl Sub<isize> for isize
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impl Sub<u128> for u128
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impl Sub<u16> for u16
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impl Sub<u32> for u32
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impl Sub<u64> for u64
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impl Sub<u8> for u8
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impl Sub<usize> for usize
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impl Sub<Wrapping<i128>> for Wrapping<i128>
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impl Sub<Wrapping<i16>> for Wrapping<i16>
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impl Sub<Wrapping<i32>> for Wrapping<i32>
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impl Sub<Wrapping<i64>> for Wrapping<i64>
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impl Sub<Wrapping<i8>> for Wrapping<i8>
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impl Sub<Wrapping<isize>> for Wrapping<isize>
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impl Sub<Wrapping<u128>> for Wrapping<u128>
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impl Sub<Wrapping<u16>> for Wrapping<u16>
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impl Sub<Wrapping<u32>> for Wrapping<u32>
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impl Sub<Wrapping<u64>> for Wrapping<u64>
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impl Sub<Wrapping<u8>> for Wrapping<u8>
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impl Sub<Wrapping<usize>> for Wrapping<usize>
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impl Sub<Duration> for Duration
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impl Sub<Duration> for Instant
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impl Sub<Duration> for SystemTime
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type Output = SystemTime
fn sub(self, dur: Duration) -> SystemTime
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impl Sub<Instant> for Instant
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impl<'_> Sub<&'_ f32> for f32
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impl<'_> Sub<&'_ f64> for f64
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impl<'_> Sub<&'_ i128> for i128
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type Output = <i128 as Sub<i128>>::Output
fn sub(self, other: &i128) -> <i128 as Sub<i128>>::Output
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impl<'_> Sub<&'_ i16> for i16
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impl<'_> Sub<&'_ i32> for i32
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impl<'_> Sub<&'_ i64> for i64
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impl<'_> Sub<&'_ i8> for i8
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impl<'_> Sub<&'_ isize> for isize
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type Output = <isize as Sub<isize>>::Output
fn sub(self, other: &isize) -> <isize as Sub<isize>>::Output
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impl<'_> Sub<&'_ u128> for u128
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type Output = <u128 as Sub<u128>>::Output
fn sub(self, other: &u128) -> <u128 as Sub<u128>>::Output
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impl<'_> Sub<&'_ u16> for u16
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impl<'_> Sub<&'_ u32> for u32
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impl<'_> Sub<&'_ u64> for u64
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impl<'_> Sub<&'_ u8> for u8
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impl<'_> Sub<&'_ usize> for usize
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type Output = <usize as Sub<usize>>::Output
fn sub(self, other: &usize) -> <usize as Sub<usize>>::Output
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impl<'_> Sub<&'_ Wrapping<i128>> for Wrapping<i128>
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type Output = <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
fn sub(
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
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self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
impl<'_> Sub<&'_ Wrapping<i16>> for Wrapping<i16>
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type Output = <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
fn sub(
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
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self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
impl<'_> Sub<&'_ Wrapping<i32>> for Wrapping<i32>
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type Output = <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
fn sub(
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
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self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
impl<'_> Sub<&'_ Wrapping<i64>> for Wrapping<i64>
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type Output = <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
fn sub(
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
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self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
impl<'_> Sub<&'_ Wrapping<i8>> for Wrapping<i8>
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type Output = <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
fn sub(
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
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self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
impl<'_> Sub<&'_ Wrapping<isize>> for Wrapping<isize>
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type Output = <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
fn sub(
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
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self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
impl<'_> Sub<&'_ Wrapping<u128>> for Wrapping<u128>
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type Output = <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
fn sub(
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
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self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
impl<'_> Sub<&'_ Wrapping<u16>> for Wrapping<u16>
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type Output = <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
fn sub(
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
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self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
impl<'_> Sub<&'_ Wrapping<u32>> for Wrapping<u32>
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type Output = <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
fn sub(
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
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self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
impl<'_> Sub<&'_ Wrapping<u64>> for Wrapping<u64>
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type Output = <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
fn sub(
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
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self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
impl<'_> Sub<&'_ Wrapping<u8>> for Wrapping<u8>
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type Output = <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
fn sub(
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
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self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
impl<'_> Sub<&'_ Wrapping<usize>> for Wrapping<usize>
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type Output = <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
fn sub(
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
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self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
impl<'_, '_> Sub<&'_ f32> for &'_ f32
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impl<'_, '_> Sub<&'_ f64> for &'_ f64
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impl<'_, '_> Sub<&'_ i128> for &'_ i128
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type Output = <i128 as Sub<i128>>::Output
fn sub(self, other: &i128) -> <i128 as Sub<i128>>::Output
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impl<'_, '_> Sub<&'_ i16> for &'_ i16
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impl<'_, '_> Sub<&'_ i32> for &'_ i32
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impl<'_, '_> Sub<&'_ i64> for &'_ i64
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impl<'_, '_> Sub<&'_ i8> for &'_ i8
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impl<'_, '_> Sub<&'_ isize> for &'_ isize
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type Output = <isize as Sub<isize>>::Output
fn sub(self, other: &isize) -> <isize as Sub<isize>>::Output
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impl<'_, '_> Sub<&'_ u128> for &'_ u128
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type Output = <u128 as Sub<u128>>::Output
fn sub(self, other: &u128) -> <u128 as Sub<u128>>::Output
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impl<'_, '_> Sub<&'_ u16> for &'_ u16
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impl<'_, '_> Sub<&'_ u32> for &'_ u32
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impl<'_, '_> Sub<&'_ u64> for &'_ u64
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impl<'_, '_> Sub<&'_ u8> for &'_ u8
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impl<'_, '_> Sub<&'_ usize> for &'_ usize
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type Output = <usize as Sub<usize>>::Output
fn sub(self, other: &usize) -> <usize as Sub<usize>>::Output
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impl<'_, '_> Sub<&'_ Wrapping<i128>> for &'_ Wrapping<i128>
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type Output = <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
fn sub(
self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
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self,
other: &Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<i16>> for &'_ Wrapping<i16>
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type Output = <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
fn sub(
self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
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self,
other: &Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<i32>> for &'_ Wrapping<i32>
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type Output = <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
fn sub(
self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
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self,
other: &Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<i64>> for &'_ Wrapping<i64>
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type Output = <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
fn sub(
self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
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self,
other: &Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<i8>> for &'_ Wrapping<i8>
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type Output = <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
fn sub(
self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
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self,
other: &Wrapping<i8>
) -> <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<isize>> for &'_ Wrapping<isize>
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type Output = <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
fn sub(
self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
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self,
other: &Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<u128>> for &'_ Wrapping<u128>
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type Output = <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
fn sub(
self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
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self,
other: &Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<u16>> for &'_ Wrapping<u16>
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type Output = <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
fn sub(
self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
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self,
other: &Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<u32>> for &'_ Wrapping<u32>
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type Output = <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
fn sub(
self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
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self,
other: &Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<u64>> for &'_ Wrapping<u64>
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type Output = <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
fn sub(
self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
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self,
other: &Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<u8>> for &'_ Wrapping<u8>
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type Output = <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
fn sub(
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
[src]
self,
other: &Wrapping<u8>
) -> <Wrapping<u8> as Sub<Wrapping<u8>>>::Output
impl<'_, '_> Sub<&'_ Wrapping<usize>> for &'_ Wrapping<usize>
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type Output = <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
fn sub(
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
[src]
self,
other: &Wrapping<usize>
) -> <Wrapping<usize> as Sub<Wrapping<usize>>>::Output
impl<'_, '_, T> Sub<&'_ BTreeSet<T>> for &'_ BTreeSet<T> where
T: Ord + Clone,
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T: Ord + Clone,
type Output = BTreeSet<T>
fn sub(self, rhs: &BTreeSet<T>) -> BTreeSet<T>
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Returns the difference of self
and rhs
as a new BTreeSet<T>
.
Examples
use std::collections::BTreeSet; let a: BTreeSet<_> = vec![1, 2, 3].into_iter().collect(); let b: BTreeSet<_> = vec![3, 4, 5].into_iter().collect(); let result = &a - &b; let result_vec: Vec<_> = result.into_iter().collect(); assert_eq!(result_vec, [1, 2]);Run
impl<'_, '_, T, S> Sub<&'_ HashSet<T, S>> for &'_ std::collections::HashSet<T, S> where
T: Eq + Hash + Clone,
S: BuildHasher + Default,
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T: Eq + Hash + Clone,
S: BuildHasher + Default,
type Output = HashSet<T, S>
fn sub(self, rhs: &HashSet<T, S>) -> HashSet<T, S>
[src]
Returns the difference of self
and rhs
as a new HashSet<T, S>
.
Examples
use std::collections::HashSet; let a: HashSet<_> = vec![1, 2, 3].into_iter().collect(); let b: HashSet<_> = vec![3, 4, 5].into_iter().collect(); let set = &a - &b; let mut i = 0; let expected = [1, 2]; for x in &set { assert!(expected.contains(x)); i += 1; } assert_eq!(i, expected.len());Run
impl<'a> Sub<f32> for &'a f32
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impl<'a> Sub<f64> for &'a f64
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impl<'a> Sub<i128> for &'a i128
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type Output = <i128 as Sub<i128>>::Output
fn sub(self, other: i128) -> <i128 as Sub<i128>>::Output
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impl<'a> Sub<i16> for &'a i16
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impl<'a> Sub<i32> for &'a i32
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impl<'a> Sub<i64> for &'a i64
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impl<'a> Sub<i8> for &'a i8
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impl<'a> Sub<isize> for &'a isize
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type Output = <isize as Sub<isize>>::Output
fn sub(self, other: isize) -> <isize as Sub<isize>>::Output
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impl<'a> Sub<u128> for &'a u128
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type Output = <u128 as Sub<u128>>::Output
fn sub(self, other: u128) -> <u128 as Sub<u128>>::Output
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impl<'a> Sub<u16> for &'a u16
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impl<'a> Sub<u32> for &'a u32
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impl<'a> Sub<u64> for &'a u64
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impl<'a> Sub<u8> for &'a u8
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impl<'a> Sub<usize> for &'a usize
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type Output = <usize as Sub<usize>>::Output
fn sub(self, other: usize) -> <usize as Sub<usize>>::Output
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impl<'a> Sub<Wrapping<i128>> for &'a Wrapping<i128>
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type Output = <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
fn sub(
self,
other: Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
[src]
self,
other: Wrapping<i128>
) -> <Wrapping<i128> as Sub<Wrapping<i128>>>::Output
impl<'a> Sub<Wrapping<i16>> for &'a Wrapping<i16>
[src]
type Output = <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
fn sub(
self,
other: Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
[src]
self,
other: Wrapping<i16>
) -> <Wrapping<i16> as Sub<Wrapping<i16>>>::Output
impl<'a> Sub<Wrapping<i32>> for &'a Wrapping<i32>
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type Output = <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
fn sub(
self,
other: Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
[src]
self,
other: Wrapping<i32>
) -> <Wrapping<i32> as Sub<Wrapping<i32>>>::Output
impl<'a> Sub<Wrapping<i64>> for &'a Wrapping<i64>
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type Output = <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
fn sub(
self,
other: Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
[src]
self,
other: Wrapping<i64>
) -> <Wrapping<i64> as Sub<Wrapping<i64>>>::Output
impl<'a> Sub<Wrapping<i8>> for &'a Wrapping<i8>
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type Output = <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
fn sub(self, other: Wrapping<i8>) -> <Wrapping<i8> as Sub<Wrapping<i8>>>::Output
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impl<'a> Sub<Wrapping<isize>> for &'a Wrapping<isize>
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type Output = <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
fn sub(
self,
other: Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
[src]
self,
other: Wrapping<isize>
) -> <Wrapping<isize> as Sub<Wrapping<isize>>>::Output
impl<'a> Sub<Wrapping<u128>> for &'a Wrapping<u128>
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type Output = <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
fn sub(
self,
other: Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
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self,
other: Wrapping<u128>
) -> <Wrapping<u128> as Sub<Wrapping<u128>>>::Output
impl<'a> Sub<Wrapping<u16>> for &'a Wrapping<u16>
[src]
type Output = <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
fn sub(
self,
other: Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
[src]
self,
other: Wrapping<u16>
) -> <Wrapping<u16> as Sub<Wrapping<u16>>>::Output
impl<'a> Sub<Wrapping<u32>> for &'a Wrapping<u32>
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type Output = <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
fn sub(
self,
other: Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
[src]
self,
other: Wrapping<u32>
) -> <Wrapping<u32> as Sub<Wrapping<u32>>>::Output
impl<'a> Sub<Wrapping<u64>> for &'a Wrapping<u64>
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type Output = <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
fn sub(
self,
other: Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output
[src]
self,
other: Wrapping<u64>
) -> <Wrapping<u64> as Sub<Wrapping<u64>>>::Output